Magneto-electric generator



Nov. 25, 9 4- E. B. NOWOSIELSKI MAGNETO ELECT-RIB GENERATOR Original Filed March 12. 1920 2 Sheets-Sheet 1 HVVEAITOR Nov. 25, 2

E. B. NOWOSIELSKI MAGNETO ELECTRIC GENERATOR ori inal Fil ad latch 12. 1920 2 Sheets-Sheet 2 P251 TTORA/E Patented Nov. 25, 1924.

UNITED STATES PATENT OFFICE.

EDWARD B. NOWO'SIELSKI, BL OMFIELD, NEW JERSEY, ASSIGNOR TQ SPLITDORF ELECTRICAL COMPANY, OF NEWARK, NEW JERSEY.

MAGNETO-ELECTRIC GENERATOR.

Original application filed March 12, 1920, Seria1 No. 365,305. Divided and this application filed April 7,

To all whom it may concern:

Be it known that LEDWARD B. NOWOSIEL- SKI, a citizen of the United States, residing at Bloomfield, in the county of Essex, State of New Jersey, have invented certain new and useful Improvements in Magneto-Electric Generators, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

This invention relates to electric generators, more particularly of the magneto type as are customarily used for ignition purposes in connection with internal combustion engines. This application is a division of my application, Ser. No. 365,305, filed March-12, 1920, now Patent 1,477,843, issued December 18, 1923.

It is the principal object of my invention to provide an electric generator of the ignition type which will be highly eflicient in its operation, relatively simple in its constructon andhence easy to manufacture. Some of the objections against armature wound magnetos are pointed out in Mason Patent Reissue 14,373 dated October 2, 1917 and it is one of the objects of my invention to eliminate some of these objections.

In the electrical generator to be described and claimed herein, the generating coil is stationary and is placed within the arch of the magnets and is completely enclosed by the magnets and end plates and, therefore, is fully protected from all injurious agents. One of the principal objects of my invention is to provide a distributor block and associated mechanism together with a circuit breaker, all completely enclosed within a simple-housing or chamber so that these parts are protected from dirt,'-water and other harmful agencies, yet the enclosures are'so arranged that the parts may be read ily gotten at by the removal of a single cover plate.

vide attachment means to the breaker box which can be quickly adjusted for any position of the engine operated lever; that is to say, the advance lever on'th e breaker box is of the universal type. I Y i Other and further objects will be apparentt-o one skilled in the art after'a study of the annexed drawings taken in connec- Another object of my invention is to pro Serial] No. 630,425.

removed from the end plate shown in Fig. 2.

Figure 4 is a perspective view of the breaker box.

Figure 5 is a section on the line'5/5 of Fig. 2.

Figure 6 is a plan view of the coil heads showing the holes for the conductors leading from the coil.

Referring now to the details wherein like numbers refer to corresponding parts in the various views, 1 is-a base or housing structure within which the rotor 2, shown in dotted lines, is positioned, being supported "on bearings at either end, one of said bearings 6 being shown carried by the end plate 3, that is adapted to be fastened to the housing in any suitable manner such as by screws engaging holes in the end of the1fram The'other end plate is indicated at Supported on the end plate 3 and pre erably overlapping housing 1 is a supplemental plate 7, the upper end of which rests against/the magnets 23 and is also engaged by the cover plate 27 as will be clearly seen in Figure 1. mental plate 7 is fastened to the end plate 3 by a screw 8 which ishollow and serves as an oil duct leading from the chamber above the head of the screw down adjacent to the bearing 6. A lid 9 fastened to plate 7 covers the oil chamber loading to the screw 8.. Carried on the top part of the housing 1. are two coil pole pieces 10' and 11 which an; arran ed longitudinally but spaced apart as indicated by 12. These pole pieces are flat on top and of relatively large area to provide contact surfaces for the enlarged polar areas 13 and 14 of the core 15 which is U shaped and carries the generating coil 16 which preferably consists of'a high and low tension winding such as is, ordinarily used in a high tension generator. The polar projections 13 -and 14 are held in position on the poles 10 and 11 in The supple-- any suitable manner such as by clamps 17. By means of this construction the air gap between the pole pieces and the inductor ele ments remains undisturbed, while the coil with its pole piece may be removed and easily replaced in position, leaving the magnetic circuit as itwas before between the rotating elements and the coil pole pieces.

manner as by screws 21.

The heads of the generator coil 16 are preferably made U shape so that the arms extend down around the polar areas 13 and 14 as indicated in Figure 1, in order to keep the laminations, of which core 15 is made, from spreading. These heads are preferably composite in character --having one part 18 of magnetic metal which serves to prevent flux leakage and direct-the flux from the pole-pieces and 11 and polar areas 13 and 14: through the core 15 embraced by the coil 16, while an insulating member 19 is placedbetween 18 and the winding.

The description of the rotor and its coacting pole pieces in the base 1 need not be herein described, since they form nopart of the present invention and are fully described in my application, Serial No. 365,- 305 filed March 12, 1920. Furthermore the aforesaid parts may be varied over wide limits without effecting the subject matter of this application. It may be noted, however, that thebase 1 has a recess on either side to receive a projection in the cover plate 27 that is punched inwardly from said coverplate'used to cover the magnets 23. Plate 27 is held in position by a clamping memberwhich fits within the recess 25 so that when the cover plate is in the assembled position, there are no screws projecting therefrom, but a smooth finished surface is presented. a

The end late 5 is constructed with a chamber wit in the upper part of which a distributor block 20 is mounted, being held within the said chamber in any suitable The distributer block shown is suitable for a four cylinder engine, the connections being made to the R terminal posts of the block by contacts 22.

The conductors 24 come out of thc distributor block; by way of grooves 26 and bush mgs 28 which are preferably of soft rubber set in plate 5. Carried in a suitable bearing (not shown) on the plate 5 is the usual distributer gear that is operated by driving pinion 29'carried on the shaft of the rotor.

' Associated'with the distributor gear and the distributer block is a distributer finger 30, the same being held to the gear by screws '31 which also serve as one terminal of a safety gap, the other terminal. of which is indicated at 32 and connection being made between the points 32 and electrode 33 having contactswith an electrical conductor 34. carried by terminal block 35 mounted on the.

back of the 'plate 5. It is understood that the conductor 34: connects with a high ten sion winding of the coil 16 in any suitable manner. The distributer finger 30 carries a distributer brush 36 and distributesthe current to the various contacts 22 all in a well known manner. The holder for the brush 36 has a projection 37 used for assistin in timing the generator with the engine.

ounted in the lower part of the chamber of plate 5 isthe breaker box mechanism generally indicated by the numeral 38. An adjustable contact 39 is carried on the block 40 supported on the box 38 but insulated therefrom. The movable breaker arm 41, carrying the bumper 42 adapted to be engaged b the cam 43 carried on the end of the sha t 29, is pivoted to the member 38 in any suitable manner as by pivotpin l. Breaker box 38 carries a spring 45 in the chamber 46. Spring 45 engages the breaker arm 41 at its extreme end and in line with the contact 39. Such an arrangement of controlling the spring for the movable breaker arm will allow the same to respond t high rotative speeds of the operating cam. It will be noted that While there is shown atwo-lobe cam, the rotor used may be capable of producing four or more current impulses on the coil 16 for each revolution, but the number of impulses is controlledby the type of cam used Since the distributer indicated is for a four cylinder engine only two sparks per revolution are required, and hence a two-lobe cam is used. Conductor 47 is shown leading from the terminal 40 and this goes to a condenser carried within the chamber of plate 5, but since it is behind the distributer block- 20 it is not shown. Another conductor 48 leads from the terminal block 40 to the coil 16, and another con ductor 49 leads toa terminal post 50 that is wired to a control switch on the dash. The chamber of the end plate 5 is closed-by a cover 51 having a rim 52 adapted to engage the flange 53. The plate 51 carries an in-v sulator 54 having a thrust member 55 adapted to engage the end of the conductor 33 to hold the distributor finger 30 in correct position. Spring 56 is used to give proper adj usi abl movement to member 55. On certain types of ignition is desired to bring out t e high tension lead generators where it the thrust member 55 may take the form of set screw 59, by which versal in its application. To the inner end of the stub shaft 51 is connected a bell crank lever 60, the end of which 61 is adapted to engage-a slot 62 in the breaker box 38 to rotate the same on. the bearing surface 63 which co-operates with a suitable bearing surface on the plate 5. Movement of the breaker box 38 is limited by slot 64 engagin" the sto pin (not shown) carried by order to get at the distributer finger, and of coursethis atonce puts the machine out of commission, while my construction 1s such that the entire block itself is covered up away from injurious agents but may be uncovered without disturbing its function, and since the tract for the distributer brush is in plainsight when the cover plate 51 is removed, all parts with the possible exception of the condenser, are open for instant inspection.

\Vhile I have shown and described one embodiment of my invention, I do not wish to be limited to the exact details shown and described, as it is understood that these may be varied to a great extent without departing from the spirit ofmy inventionand scope of my appended claims.

Having thus described my invention what I claim is:

1. In a magneto electric generator of the class described, a base structure forming a housing carrying a rotor therein and having a pair of pole pieces fixed in tandem in the top of the housing and forming a part thereof, a coil structure carried on" said pole pieces with means including said rotor for shifting magnetic flux through said coil, end plates attached to the opposite ends of said housing, one of said end plates carrying a distributer block on one side and a terminal connector on the other, a distributing'finger ii U associated with said block, said connector carrying members electrically connecting the coil with said distributing finger, and a cover plate for enclosing the distributor bloc-k and finger within itself and said end plate. a

2. A magneto electric generator of the class described in which the generatiiw coil is placed on the outside and on top oi pole pieces forming in part a housing supporting the magnets and enclosing -a rotor for directing the flux through said coil; and which hus-ing is closed at its ends by end plates supporting the rotor, further characterized in that one of said end plates has a terminal connector on one side and a cham-- ber on the other side thereof,'said chamber housing a distributer block at the top portion and a circuit breaker mechanism at the bottom portion, a distributer finger associated with the block, said terminal connector serving to electrically connect the coil with the distributing finger and a cover plate for closing the outer opening of said chamber. 1 p 1 3. A magneto generator of the class described in which the generating coil is placed on the outside and .on top of pole pieces forming in part a housing supporting the magnets and enclosing a rotor for directing the flux through said coil and which housing is closed at its ends by end plates supporting the rotor, further characterized in that one of said end vplates has a terminal connector on one side and a chamber on the other side thereof, said chamber housing ardistributerblock at the top portion and a circuit breaker mechanismat the bottom portion, a distributer finger associated with the block, said terminal connector serving to electrically connect the coil with the distributing finger and a cover plate for closing the outer opening ofsaid chamber, said cover plate carrying an adjustable thrust member to engage the distributor finger, and a timing lever mechanism having a part to engage said breaker box and another part adapted to be engaged by an operating lever.

4. A magneto electric generator in which the generator coil is stationary and in which flux changes are produced through the core of said coil by a rotatable member supported on bearings between end plates and which carries inductors, coacting between Q magnet pole pieces and pole pieces'associated with said coil, further characterized in that one of the end latesis formed with a chamber on one sidefbvithin which a distributer block, distributor finger and circuit breaker mechanism for controlling the coil are housed, a terminal connector on the other side of the plate for completing an electrical connection between. the coil. and.

the distributing finger and a single cover 1 plate for closing the said chamber! 5. A magneto electric generatorin which the generating coil is stationary and in which flux changes are produced through the core of said coil by a rotatable member supported on bearings between end plates 9 and which carries inductors, coacting between magnet pole pieces and pole pieces associated with said coil, further characterized injthat; one of the .end plates is formed with a chamber 011 one side, within which a distributor, block, distributing finger and circuit breaker mechanism for controlling the coil are housed, a terminal connector on the other side of the plate for completing an electrical connection between the coil and the distributing finger, and a single cover plate for closing the same chamber, said cover plate carrying a self adjusting member for engaging the distributing finger and .a timer lever mechanism consisting of a stub shaft with a bell crank lever on the inner end for engaging the circuit breaker mechanism and with an adjustable lever on the outer end to' be engaged by an operating lever as described.

6. A magneto electric generator in which the generating coil is stationary and housed within the arch of the magnets and in which flux changes are produced through the core of said coil by a rotatable member supported on bearings between end plates and which carries inductors, coacting between the magnet pole pieces and pole pieces associated with said coil, further characterized in that one of the end plates is formed with a chamber on one side, within which a distributer block, distributer finger and circuit breaker mechanism for controlling the coil are housed, a'terminal connector on the other side of the plate for completing an electrical connection between the coil. and the distributing finger, a single cover plate for closing said chamber and fuither characterized in that the other end of the generator has a supplemental plate fastened to its end plate, said su plemental plate engaging the magnet for cosing the coil within the arch thereof.

In testimony whereof, I affix my signature.

EDWARD B. NOWOSIELSKI. 

